Sony SmartBand 2 vs. Garmin 645 Music vs. Samsung Galaxy Watch vs. Garmin Vivofit 4

 
SmartBand 2
645 Music
Galaxy Watch
Vivofit 4
 SonySmartBand 2Remove Buy NowGarmin645 MusicRemove Buy NowSamsungGalaxy WatchRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$130$450$330$79.95
Release2015201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days7 days7 days1 year
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
CellularNA
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240360 x 36088 x 88
Sizen/a1.2 inches1.2 inches or 1.3 inchesNA
Touchn/a
Typen/aMIPAMOLEDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP585 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizen OS
Apps
MusicSpotify

All Wearables